Hmm i did another test today, when i have the bottle and regulator lying sideways, and let a big burst of gas through, the valve seems to freeze open and the regulator has to vent excess pressure via an outlet hole on the side of the regulator. It will then continually vent and further freeze the regulator untill the bottle is empty or untill you unscrew the bottle from the regulator.
Are you sure this isnt happening on your setup? i might have to look into making an anti-siphon valve or somesuch. Did you purchase your bottle off the palmer pursuit site? they'res all seem to be standard like mine.

Sounds like a bit of crud jamming things open. Or possibly even some ice. Try pulling the regulator apart and giving it a clean.

There shouldn't be any ice in the regulator because there is no air in the regulator only CO2 so therefor no water. It is possible to get dry ice if a lot of liquid CO2 is dumped very quickly but remember that you need to reach temps of less than -70 degrees for CO2 to freeze. I managed to do this at robogames while emptying a 20oz tank but the ambient temp was around 0 to begin with. The only way I can see you getting ice inside the reg is if it is jammed open to begin with.
My suggestion is to pull the reg apart and give it a clean. It is quick and simple to do. Unscrew the adjusting screw at the end then use a 10 or 20c piece to unscrew the end cap. The piston should then slide out.
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Get Some!!!

Secretary of the Queensland Robotics Sports Club inc.

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Get Some!!!

Secretary of the Queensland Robotics Sports Club inc.

Have you tried it out on a robot? Does it retract reliably? Videos would be good if possible.
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So even the rain that falls isn't actually going to fill our dams and our river systems

Woo, Front hinged flipper
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https://www.halfdonethings.com/

Clever how you take strain off the drive motors when you flip. But it begs the question, if you miss will your own robot go flying?
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( •_•)

( •_•)>⌐■-■

(⌐■_■)

YEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH

It didn't retract when I was watching. My brother said it was working fine before I came home. Probably a loose wire. The wheels don't touch the ground when the flipper is up which we be a problem if it doesn't get fixed.
It dosn't go flying when it misses, mainly because it doesn't have a buffer, but it does self right very nicely. The strange thing I saw was that it had a lot of trouble getting under Avenger, probably because Avenger wasn't moving, but when it pushed the other robot against the wall it was garenteed to flip and stack the other robot even with only the tip of the flipper under the other robot.
Only weighs 9.7kg, so 3.5kg of armour.

ok., your have about 4 kg for armour, use thick steel plate, i repeat use steel, its your friend, reallyy

U have an awesome and prob effective robot there, armour it up nicely and youll be taking out the best spinners i think

Please dont cover it in polycarb, tank it out man
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Andrew Welch, Team Unconventional Robotics

Considering there is just over 3kg of weight to spare (remember I need to include gas, battery mounts and other misc parts) and also the surface area to cover I can only use approx 1.5mm of "thick" steel. But considering the angles involved with the sloped armour (something well spoken of but very little practiced in other states) this will be fine.
As for all this scare mongering of "must be armored against big spinners!", out of a field of around 30 robots I can count maybe 3 spinners that are reliable enough to worry about. I don't see why I should sacrifice functionality to defend against less than 10% of opponents when I am not even afraid of them anyway.
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Get Some!!!

Secretary of the Queensland Robotics Sports Club inc.

The polycarb worked fairly well on Hellcat previously, I just think it was the way it was mounted that let it down. VL put some nice slashes through it a times, but never damaged anything behind it, but removed the whole panels several times

Maybe look at a combination of armour. Put 3mm steel <150mm of the robots height and 3mm polycarb for anything above that...
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https://www.halfdonethings.com/

The robot is only 150mm high
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Get Some!!!

Secretary of the Queensland Robotics Sports Club inc.

Some video:

http://www.youtube.com/watch?v=4bPlhbaZLII
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Get Some!!!

Secretary of the Queensland Robotics Sports Club inc.

Very good. You look like you're onto a winning design.
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So even the rain that falls isn't actually going to fill our dams and our river systems

OK, very nice. I don't like the nose up attitude, but with heavy armor on the front maybe that would be corrected Steel armor on the front, ploy on the back maybe.

Very nice I like it neat! Hows the self-right...cool.
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Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.
Albert Einstein.